Saw-swage



(No Model.)

J. HANGHETT.

SAW SWA-GE.

1104445504. Patentd Jan. 27, 1891.

W/TNESSES INVENTOF? 6%W JQ WW ,B A TTOHNE Y8 fiNlTED STATES PATENT Di ries,

JOHN HANCl-IETT, OF BIG RAPIDS, MICHIGAN.

SAW-SWAG E.

SPECIFICATION forming part of Letters Patent No. 445,504, dated January 27, 1891.

Application filed August 2'7, 1890. Serial No. 363,210. (No model.)

To aZZ whom it may concern.-

Be it known that I, JOHN HANGHETT, of Big Rapids, in the county of Mecosta and State of Michigan, have invented a new and Improved Saw-Swage, of which the following is a full, clear, and exact description.

The object of my invention is to provide a new and improved saw-swage, which is simple and durable in construction,very effective in operation, and capable of swaging teeth of band-saws, circular saws, the.

The invention consists of certain parts and details and combinations of the same, as will be hereinafter fully described, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of the improvement Fig. 2 is an inverted plan view of the same. Fig. 3 is an enlarged sectional side elevation of the improvement on the line 03 0c of Fig. 2, and Fig. 4' is a transverse section of the same on the line y y of Fig.

The improved saw-swage is provided with a block A, having in its under side alongitudinal recess B,through which is adapted to pass the saw-blade C, the teeth of which are to be swaged. Into the recess B extends a swagedie D, made circular in form, having one part- D cut out for the entrance of the saw-tooth to be swaged. The swage-die D is formed on a shaft E, mounted to turn in suitable bearings arranged in the block A, one endof the shaft carrying a handle F for conveniently manipulating the swage-die. The other end of the shaft E is provided with aseries of aunular grooves E, into one of which at a time is adapted to pass a plate G, held adjustable on one of the faces of the block A.

By disconnecting the plate G from the respective annular groove E of the shaft F. the latter may be moved transversely to a desired position, so as to change the swage-die D in the recess 13, after which the plate G- is moved to engage the corresponding annular groove E, so as to hold the shaft E from sliding transversely, but permitting the same to turn. By thus making the shaft E transversely adj ustable the swagc D may be formed of considerable length, part of which only .is used at a time. (See Fig. 4:.)

In the recess 13 of the block A is fitted to slide an anvil-die II, arranged radially to the swage-die D and resting with its upper side on the inclined bottom B of the recess B. Across the bottom of the anvil-die II passes a bolt I, which permits the anvil-die to slide toward and from the swage-die D, the sliding movement being accomplished by a set-screw J, screwing in the block A against the upper end of the said anvil-die II. By adjusting the said. screw J the anvil-die H is moved toward or from the swage-die D, but always in a radial line with the same.

The arm F in its normal position rests on an arm K, held adj ustably in the block A by means of a set-screw L. The saw-blade G to ing operation by two oppositely-arranged screws N and O, of which the former has its inner face roughened, so as to firmly grip or clamp the saw-blade. The outer end of the screw 0 carries a handle P for conveniently turning the screw 0 in or out of contact against one face of the saw-blade, While the other screw N is provided at its outer end with an offset adapted to be engaged by a wrench or other tool for adjusting the said screw N, according to the thickness of the saw-blade C.

From the block A extends longitudinally a bracket Q, on which is held vertically adj ust able an arm R, the lower end B of which is forked, and is adapted to receive and guide the saw-blade C. On the teeth of the latter rests a longitudii'ial arm T, extending from the end B, as is plainly shown in the draw ings. The arm R can be vertically adjusted by a bolt S, held in the bracket Q and passing through a slot in the said arm R.

The operation is as follows: "When the device is in the position shown in Figs. 1 and 2, the saw-blade 0 extends into therecess Band the device is supported on the blade on one end by the arm T and clamped in place at the other end by the screws N and O. The swagedie D is now in such a position that its out out part D is directly opposite the upper end of the anvil-die l-l, so that the saw-tooth to be swaged can readily pass into the space between the said dies. The operator now takes IOC hold of the handle F and gives the same about a quarter-turn in the direction of the arrow a. By the operator moving the handle F the shaft E is turned so that-the swage-die D acts on the point of the saw-tooth and swages the same, the back of the tooth being pressed against the upper end of theanvil-dieH. As soon as this has been accomplished the operator returns the arm F to its former resting position on the arm K, as shown in Figs. 1 and 2, then turns the handle P so as to loosen the saw-blade, which is now shoved forward the distance between two teeth, so that the next following saw-tooth will pass into the space between the two dies. The saw-blade C is th n clamped again between the screws Nand O, and the abovedescribed operation is again repeated.

It will be seen that both ends of the anvil die H may be used in swaging, and the said die can be readily adjusted toward or from the swage-die D, according to the form of the tooth to be swaged. It will further be seen that by thus adjusting the anvil-die all wear on the swage end can be readily taken up, and the die may be readily taken out at any time to dress up the swage end.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. A saW-swage comprising the block A, provided with a recess B, having an inclined bottom B, the rectangular anvil-die H, resting on said bottom and having rounded ends, a transverse screw I, crossing the recess B and supporting the said die opposite said inclined bottom, the screw J, hearing at its inner end on the outer rounded end of said die, and the longitudinally-adjustable shaft E, extending transversely through the block and having a swage-die D adjacent to the inner rounded end of the anvil-die and provided with an operating lever or handle F, substantially as set forth.

2. A saw-swage comprising the block A, having recess B and the adjustable anvil-die H, the longitudinally-adjustable shaft E, extending, through the block, having at one pr0- jecting end a series of annular grooves E, and formed with an elongated swage-die D between its ends of greater length than the width of the recess B, and the slotted adjustable plate G on the block and engaging one of the annular recesses with one end substantially as set forth.

' JOHN HANOHETT.

Witnesses:

WM. D. SMITH, WM. I-I. HORNING. 

